document.write( "Question 498563: Laura Dawson can get to school in 1/4 hour if she rides her bike. It takes her 3/4 if she walks. Her speed when walking is 6 miles per hour slower than her speed when riding.What is her speed when riding? \n" ); document.write( "
Algebra.Com's Answer #337067 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Laura Dawson can get to school in 1/4 hour if she rides her bike. \r \n" ); document.write( "\n" ); document.write( "It takes her 3/4 hr. if she walks. \r \n" ); document.write( "\n" ); document.write( "Her speed when walking is 6 miles per hour slower than her speed when riding. \n" ); document.write( "---- \n" ); document.write( "Walking DATA: \n" ); document.write( "time = 3/4 hr ; speed = r mph ; distance = (3/4)r miles \n" ); document.write( "-------- \n" ); document.write( "Riding DATA: \n" ); document.write( "time = 1/4 hr ; speed = r+6 mph ; distance = (1/4)(r+6) \n" ); document.write( "------ \n" ); document.write( "Equation: \n" ); document.write( "distance = distance \n" ); document.write( "(3/4)r = (1/4)(r+6) \n" ); document.write( "3r = r+6 \n" ); document.write( "2r = 6 \n" ); document.write( "r = 3 mph (walking speed)\r \n" ); document.write( "\n" ); document.write( "What is her speed when riding? \n" ); document.write( "r+6 = 9 mph (riding speed) \n" ); document.write( "============================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "=============\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |